Tie-up
Part of speech: noun
Definition: A temporary interruption or cessation of a normal activity
Association
Part of speech: noun
Definition: The act of associating.The state of being associated.A group of persons associated for a common purpose; an organization; society.A connection to or an affiliation with something.
Example sentence: All legitimate government is a mutual insurance company, voluntarily agreed upon by the parties to it, for the protection of their rights against wrong-doers. In its voluntary character it is precisely similar to an association for mutual protection against fire or shipwreck.